Press ring mounting device and method for mounting a press ring

Abstract

The present invention provides a thrust ring mounting device that can improve work efficiency by suppressing damage to the outer surface of the insertion opening during the movement of the thrust ring. [Solution] In the pipe joint 100, the insertion port 11 of the first pipe 1 is inserted into the receiving port 21 of the second pipe 2, and a compression ring 3 is fitted onto the insertion port 11. The compression ring 3 has a protrusion 34 and a bolt insertion hole 31 provided in the protrusion 34. The compression ring 3 is attached to the receiving port 21 and pushes the sealing member between the insertion port 11 and the receiving port 21. The compression ring mounting fixture 4 holds the compression ring 3 and attaches the compression ring 3 to the receiving port 21. The compression ring mounting fixture 4 has a main body 41, a pair of regulating members 44, and an insertion member 45. When the compression ring 3 is held, the insertion member 45 is inserted into the bolt insertion hole 31, and each of the pair of regulating members 44 can abut against the outer surface of the compression ring 3 on both outer sides in the circumferential direction of the protrusion 34 of the compression ring 3, thereby restricting the swinging of the compression ring 3 relative to the main body 41.

Claims

[Claim 1] The insertion opening formed at the end of the first pipe is inserted into the receiving opening formed at the end of the second pipe. An annular retaining ring fitted onto the outer surface of the insertion opening, It includes an annular sealing member that seals the space between the outer surface of the insertion opening and the inner surface of the receiving opening, The push ring is, Multiple protrusions projecting in the radial direction of the pipe onto the outer surface of the thrust ring, A bolt insertion hole is provided that penetrates the protruding portion in the direction of the pipe axis and It has, In a pipe fitting in which a thrust ring is attached to the socket, thereby pressing the sealing member between the outer surface of the insertion opening and the inner surface of the socket, A push ring mounting device for holding a push ring and attaching it to a socket, A body that can contact the end face of the thrust ring, A pair of restricting members provided on the main body, A columnar insertion member provided between a pair of regulating members and It has, When the thrust ring is held, The insertion member is inserted through the bolt insertion hole, and Each of the pair of regulating members is, On both outer sides of the convex portion of the thrust ring in the circumferential direction of the pipe, it is possible to contact the outer surface of the thrust ring, The oscillation of the thrust ring around the bolt insertion hole relative to the main body is restricted. A distinctive thrust ring mounting device. [Claim 2] The thrust ring, which is held in contact with the main body of the thrust ring mounting fixture, is moved to a position where the distance between the thrust ring and the socket in the direction of the pipe axis is a predetermined distance. The thrust ring mounting device according to claim 1, characterized in that the length of at least one regulating member in the direction of the pipe axis is greater than the length of the thrust ring in the direction of the pipe axis by the predetermined distance. [Claim 3] The thrust ring, held in the thrust ring mounting fixture, is such that the thrust ring moves upward by a predetermined height from the outer surface of the insertion opening. The thrust ring mounting device according to claim 1 or 2, characterized in that the length from the axis of the insertion member to the inner end of the main body in the diameter direction of the pipe is greater by the predetermined height than the length from the center of the bolt insertion hole to the inner surface of the thrust ring. [Claim 4] The insertion opening formed at the end of the first pipe is inserted into the receiving opening formed at the end of the second pipe. An annular retaining ring fitted onto the outer surface of the insertion opening, It includes an annular sealing member that seals the space between the outer surface of the insertion opening and the inner surface of the receiving opening, The push ring is, Multiple protrusions projecting in the radial direction of the pipe onto the outer surface of the thrust ring, A bolt insertion hole is provided that penetrates the protruding portion in the direction of the pipe axis and It has, In a pipe fitting in which a thrust ring is attached to the socket, the sealing member is pressed between the outer surface of the insertion opening and the inner surface of the socket by the thrust ring, A push ring mounting device for holding a push ring and attaching it to a socket, A body that can contact the end face of the thrust ring, A pair of restricting members provided on the main body, A plate-shaped spacer is provided at the inner end of the main body in the diameter direction of the pipe and It has, When the thrust ring is held, The spacer is The main body extends to the same side as the pair of restricting members in the axial direction of the pipe, It is inserted into the inner surface of the retaining ring, The pair of regulating members are The protrusion of the retaining ring is clamped from both outer sides in the circumferential direction of the pipe, The press ring is sandwiched between the spacer and the pipe in the diameter direction. Restricts the movement of the thrust ring relative to the main body in the circumferential and radial directions of the pipe. A distinctive thrust ring mounting device. [Claim 5] Between a pair of regulating members, the main body has notches that open on both sides in the direction of the pipe axis, The notch is positioned so as to overlap with the bolt insertion hole of the retained thrust ring in the direction of the pipe axis. The thrust ring mounting device according to claim 4, characterized in that [Claim 6] It further comprises a cylindrical insertion member that is inserted into a bolt insertion hole between a pair of regulating members. The thrust ring mounting device according to claim 4, characterized in that [Claim 7] A method for attaching a thrust ring to a pipe joint using a thrust ring mounting device, Pipe fittings are, An insertion opening formed at the end of the first pipe, A socket formed at the end of the second pipe, An annular thrust ring attached to the socket, An annular sealing member provided between the outer surface of the insertion opening and the inner surface of the receiving opening, Equipped with, The push ring is, Multiple protrusions projecting in the radial direction of the pipe onto the outer surface of the thrust ring, A bolt insertion hole is provided that penetrates the protruding portion in the direction of the pipe axis and It has, The thrust ring mounting bracket is, The main body that contacts the end face of the thrust ring, A pair of restricting members provided on the main body, A cylindrical insertion member provided between a pair of regulating members and It has, The thrust ring and sealing member are fitted onto the outer surface of the insertion opening. The socket is inserted into the socket. The insertion member is inserted through the bolt insertion hole, and A pair of regulating members are positioned so as to be able to contact the outer surface of the thrust ring on both outer sides in the circumferential direction of the thrust ring's protrusion, thereby holding the thrust ring in the thrust ring mounting fixture. The thrust ring, held in the thrust ring mounting fixture, is lifted from the outer surface of the insertion opening. It is moved along the outer surface of the insertion opening in the direction of the pipe axis, and its positioning in the direction of the pipe axis is achieved. It is moved onto a height-adjusting sheet member placed on the outer surface of the insertion opening, and centered relative to the receiving opening. The thrust ring is attached to the open end face. The sealing member is pressed between the outer surface of the insertion opening and the inner surface of the receiving opening by the thrust ring. A method for attaching a thrust ring, characterized by the features described above. [Claim 8] A method for attaching a thrust ring to a pipe joint using a thrust ring mounting device, Pipe fittings are, An insertion opening formed at the end of the first pipe, A socket formed at the end of the second pipe, An annular thrust ring attached to the socket, An annular sealing member provided between the outer surface of the insertion opening and the inner surface of the receiving opening, Equipped with, The push ring is, Multiple protrusions projecting in the radial direction of the pipe onto the outer surface of the thrust ring, A bolt insertion hole is provided that penetrates the protruding portion in the direction of the pipe axis and It has, The thrust ring mounting bracket is, The main body that contacts the end face of the thrust ring, A pair of restricting members provided on the main body, A plate-shaped spacer is provided at the inner end of the main body in the radial direction of the pipe, and extends to the same side as the pair of restricting members in the axial direction of the main body. It has, The thrust ring and sealing member are fitted onto the outer surface of the insertion opening. The socket is inserted into the socket. The insertion member is inserted through the bolt insertion hole, and The pair of regulating members hold the thrust ring in place by sandwiching the protrusion of the thrust ring from both outer sides in the circumferential direction of the pipe, and by sandwiching the thrust ring between them and the spacer in the radial direction of the pipe. The thrust ring held in the thrust ring mounting fixture, A spacer is inserted between the inner surface of the thrust ring and the outer surface of the socket, and the socket is centered relative to the socket. It is moved along the outer surface of the insertion opening in the direction of the pipe axis, and its positioning in the direction of the pipe axis is achieved. The thrust ring is attached to the open end face. The sealing member is pressed between the outer surface of the insertion opening and the inner surface of the receiving opening by the thrust ring. A method for attaching a thrust ring, characterized by the features described above.

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